const musicContainer = document.getElementById('music-container');
const playBtn = document.getElementById('play');
const prevBtn = document.getElementById('prev');
const nextBtn = document.getElementById('next');

const audio = document.getElementById('audio');
const progress = document.getElementById('progress');
const progressContainer = document.getElementById('progress-container');
const title = document.getElementById('title');
const cover = document.getElementById('cover');

const songs = ['ribuluo','sound'];

let songIndex = 0;

loadSong(songs[songIndex]);

function loadSong(song) {
    title.innerText = song;
    audio.src = `music/${song}.mp3`;
    cover.src = `picture/${song}.jpg`;
}

function playSong() {
    musicContainer.classList.add('play');
    playBtn.querySelector('i.fas').classList.remove('fa-play');
    playBtn.querySelector('i.fas').classList.add('fa-pause');
    audio.play();
}
function pauseSong() {
    musicContainer.classList.remove('play');
    playBtn.querySelector('i.fas').classList.add('fa-play');
    playBtn.querySelector('i.fas').classList.remove('fa-pause');
    audio.pause();
}
function prevSong() {
    songIndex--;
    if (songIndex < 0) {
        songIndex = songs.length - 1;
    }
    loadSong(songs[songIndex]);
    playSong();
}
function nextSong() {
    songIndex++;
    if (songIndex > songs.length -1) {
        songIndex = 0;
    }
    loadSong(songs[songIndex]);
    playSong();
}

function updateProgress(e) {
    const{duration,currentTime} = e.srcElement;
    const progressPercent = (currentTime / duration)* 100;
    progress.style.width = `${progressPercent}%`;
    
}
function setProgress(e) {
    const width = this.clientWidth;
    const clickX = e.offsetX;
    const duration = audio.duration;
    audio.currentTime = (clickX / width) *duration;
    console.log(currentTime);
}

playBtn.addEventListener('click',function () {
    const isPlaying = musicContainer.classList.contains('play');
    if (isPlaying) {
        pauseSong();
    } else {
        playSong();
    }
});

prevBtn.addEventListener('click',prevSong);
nextBtn.addEventListener('click',nextSong);

audio.addEventListener('timeupdate',updateProgress);

progressContainer.addEventListener('click',setProgress);
audio.addEventListener('ended',nextSong);

